Stacked spectra with CASSIS model fits with T_ex = 100 K for all species aside from NO which is modelled at 40 K. The grey region shows the +/- 1σ error. The vertical dashed lines denote the rest frequency of the lines. The CH₃OH model is with a column density of 5 × 10¹⁴ cm⁻². In Fig. 2 we show how a higher column density better fits weaker CH₃OH lines covered in the observations.